It’s a GITD marker that lets you find your thing in the dark. It’s also used for markers on watch dials and gun sights. But in at least those tiny sizes, it’s not a flashlight substitute or anything like that. You could add a flashlight to your keys, so the tritium helps you find the key ring and then the flashlight gives you more light if you need it.
It’s a GITD marker that lets you find your thing in the dark. It’s also used for markers on watch dials and gun sights. But in at least those tiny sizes, it’s not a flashlight substitute or anything like that. You could add a flashlight to your keys, so the tritium helps you find the key ring and then the flashlight gives you more light if you need it.